Bulletin of the American Physical Society
53rd Annual Meeting of the APS Division of Atomic, Molecular and Optical Physics
Volume 67, Number 7
Monday–Friday, May 30–June 3 2022; Orlando, Florida
Session Q08: Quantum Gases in Low Dimensions II
8:00 AM–10:00 AM,
Thursday, June 2, 2022
Room: Salon 7/8
Chair: Cheng Chin, Chicago
Abstract: Q08.00008 : Probing sine-Gordon dynamics in coupled spin chains
9:24 AM–9:36 AM
Presenter:
Elisabeth Wybo
(Technische Universität München)
Authors:
Elisabeth Wybo
(Technische Universität München)
Michael Knap
(Tech Univ Muenchen)
Alvise Bastianello
(Technical University of Munich)
With the uprising interest in non-equilibrium dynamics of many-body quantum systems, testing the validity of these realizations far from the ground state is of utmost importance.
We investigate the emergence of the sine-Gordon theory as the low-energy description of a one-dimensional spin ladder. We use matrix-product state techniques to numerically characterize its low-energy sector and probe the validity of the effective dynamics deeply in the quantum regime.
Then, we probe the integrability of the sine-Gordon dynamics by realizing wave-packet scattering events. We introduce experimentally relevant probes of the sine-Gordon field theory in the described setup. Our results can be readily verified with currently available ultracold atom quantum simulators.
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